Trolley-harp.



P. FABROWIGZ.

TROLLEY HARP.

APPLIoA'rIoN FILED SEPT. s, 1911.

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me/who@ Peter Fabrowioz f fw tlrroww P. FABRGWIGZ.

TROLLEY HARP.

APPLIOATION FILED snPT. 5, 1911.

v in trolley harps.

, .latter leave bridges or other objects into which the wheel j inaccordance with my invention and lar'view of one of [State ofPennsylvania,

. ley-Harps; and I Fig. 2 is a central UNITED STATFS ITENT OFFICE.

PETER FABROWICZ, F SCR/ANTON, PENNSYLVANIA.

TROLLEY-HARP.

Specification of Letters Patent.

Patented Mar. 5, 1912.

Application filed September 5, 1911. Serial No. 647,619.

`To all whom it may concern:

Be it known that I, `Pn'rnn Fannowioz, a citizen of the United States,residing at Scranton, in the county of Lackawanna and have inventedcertain new and useful Improvements in Troldo declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

This invention relates to improvements One object of the invention is toprovide a trolley harp having an improved construction and arrangementofself oiling mechanism whereby the journals of the wheels are keptproperly lubricated.

Another object is to provide a trolley harpv for 'protecting having an'improved means the flanges of the trolley wheel should the thewire whenpassing beneath In the accompanying drawings: Figure 1 is a side vlew ofa trolley harp constructed show-- ing the saine equipped with a trolleywheel; vertical cross sectional viewv of the same; Fig. '3 is anenlarged sectional view through one of the oil boxes or chambers ontheupper ends of the trolley fork; Fig. 4; is a horizontal sectionalView of the same. Fig. 5 is a detail perspective view of yone of thejournal boxes for the trolley wheel shaft; Fig. 6 is a simithe bearingsleeves of the trolley wheel shaft; Fig. 7 is a detail verticals'ectional view through the yielding connection of the trolley forks andupper end of the trolley pole.

Referring more particularly to the drawings, 1 denotes my improvedtrolley fork which comprises a shank nected to the upper end of thetrolley pole 3 by a knuckle joint 4 comprising a series of substantiallycylindrical lugs 5 formed on the lower end of the shank'2 and which `areadapted toengagea series of semi-circular'pole lugs 7 'arranged on theupper end of the trolley pole as'shcwn.

A objects in view, the of certain novel features parts as will be morefully,

l2 hingedly cony 'Between the. 4sides of the boxes lugs 5 and 7 arearranged wear plates 0r washers 8 and through said lugs and washers isarranged a pivot pin 9 said pin being preferably held in position by acotter pin or other suitable fastening means as shown.

In the intermediate lug on the end of the trolley pole is formed a notch10 in which 1s arranged the lower end of a flat spring 11 in the lowerend of which is formed an eye 12 through which is inserted the pivot pin9 of the joint. The upper end of the spring projects into a recess 12formed in the shank of the trolley frame. When thus arranged the spring11 will yieldingly hold the harp in proper position but lwill permit thesame to swing laterally in either direction when the car is passingaround curves thus preventing the sides of the wheel from bindingagainst the wire or being forced out of engagement therewith. On oneside of the shank nected the controlling rope of the trolley pole andharp.

On the upper ends of the forks are formed oil boxes or chambers 14, saidoil boxes being preferably offset or projecting beyond the outer sidesof the upper ends of the fork and in one edge of each of the boxes 111is formed a filling opening 15 through which the oil and wicks areapplied to the bearings of the trolley wheel. The openings 15 are closedby oil tight doors 16 which are slidably engaged with guide groovesformed in the edges of the openings. The doors 16 have formed in theirlower edges deep grooves or notches 17 which, when the doors are closedengage and lit over the lower edges of the openings and thus form an oiltight closure. The doors 16 are held in closed Huid tight position 18 orsimilar fastening devices which are inserted through alined apertures 19and 20 in the doors and top of the boxes 14 as shown.

In the inner sides of the boxes on the upper ends of the fork are formedrectangular openings 21 with which are engaged rectangular journal boxes22 having on their outer ends outwardly projecting stop flanges 23 whichform guide grooves on the upper and lower sides of the boxes, saidgrooves having a sliding engagement with the upper and lower edges ofthe openings 21, thus holding the boxes in place. 'It will be noted thatthe 22 adjacent to the open 2 of the 'fork is formed an aper- H tui-edlug 13 to which is adapted to be conjournal boxes sob end of theopenings 21 have formed thereon extensions 22 which when the boxes arein place fill the ends of the openings 21 as shown. In the inner side ofthe extensions 22 are formed guide grooves 23 which when the journalboxes are in place, form a continuation of one of the guide grooves inthe edges of the openings 15 of the oil boxes and are adapted to receivethe edges of the doors 16 which close said opening. The doors, when thusengaged in the guide grooves 23 and with the grooves in the edges of theopenings l5, will securely hold the journal boxes in operative positionin their openings 21 of the oil boxes. By thus arrang'ing and fasteningthe rectangular 22 it will be readily seen that in order to remove saidboxes and the trolley wheel and shaft journaled therein it is simplynecessary to remove t-he doors 16 and slide the. boxes out through theopen ends of the openings 21 in the sides .of the oil boxes.

Through the center of the journal boxes are formed bearing passages orcylindrical bores, adapted to receive and revolubly support the ends ofthe trolley wheel shaft 24. In one side of each of a notch or recess 25which intersects the bore or bearing aperture of the box, said recessesor notches 25 being adapted to receive wicks 2.6 the upper ends of whichare secured to the top of the boxes as clearly shown in Fig.

3 of the drawing. The lower ends of the wick when thus arranged rest onthe bottom of the oil chambers, while that portion lying in the notches25 engages the adjacent rsides of the shaft 24 of the trolley wheel,

thus keeping said shaft thoroughly lubricated. In the outer side of oneof the boxes 14 and in line with the bore of the journal box therein isformed a threaded passage 27 through which the shaft is adapted to beinserted when engaged with the journal boxes and trolley wheel. Thepassage'27 is normally closed by a screw plug 28 or other suitable formof closure. v

Adapted to be engaged with and revolubly supported by the shaft 24 is atrolley wheel 29 the hub of which is preferably secured to the shaft 24by a diagonally arranged wheel fastening pin 30 arranged through the hubof the wheel and through the shaft as shown. The wheel is provided witha grooved rim in which is preferably arranged a wear plate 31 to protectthe inside of the flanges of the wheel. On the shaft 24 between the endsof the hub of the wheel and the flanged ends of the journal .oxes arearranged washers 32 between which are disposed coiled springs 33. Thepressure of the springs upon the washers engaging the opposite sides ofthe wheel heb tend te yield-.ingly hold .the Wheel-n the center of thesha-ft ormidway between the the boxes 22 is formedl ends of the forks.In addition to the springs 33 are also `employed elastic spacing sleeves34 which are arranged on the shaft between the pairs of washers 32 andwithin the springs 33 as shown. In the journal boxes 22 are preferablyarranged bearing sleeves 35 in which the ends of the shaft 24 are en-.gaged, said bearing sleeves being retained in position in the journalboxes by the springs 33. In one side of t-he sleeves 35 are formedapertures 36 which register with Y,the apertures formed by the notches35 in the sides .of the box to permit the wick :to -be engaged with thesides of the shaft.

Arranged on and secured to the upper portion of the fork is asubstantially hernispherical hollow casing 37 having its sides extendingupwardly to a point practicallyr in line with the `center of the shaftof lille wheel and in the upper edges of the casing opposite the groovedrim vof the wheel are formed notches 38 which prevent the casing frominterfering with the trolley wire. The casing v37 is arranged around thelower portion of the trolley wheel for .the purpose of protecting theflanges .of the latter in draai'- ing it down when it has becomedisengaged from the trolley wire and thrown upward.

From the foregoing description taken in connection with the accompanyingdrawings the construction and .operation of the invention will bereadily understood without requiring a more extended explanation.

arious changes in the form, proportion and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advan tages of the invention as claimed.

Having thus described my invention, what i I claim 1s:

1. A trolley harp having on its upper ends, oil boxes, said boxes havingin one side journal box receiving apertures, journal boxes arranged insaid apertures and projecting into said oil boxes, said journal boxeshaving formed in one side wick receiving notches,

sleeves arranged in said journal boxes, said sleeves havin formedtherein apertures adapted to register with the apertures in said journalboxes, a trolley wheel shaft having its ends revolubly engaged with saidjournal boxes, wicks arranged in vsaid loi-l boxes and passing throughthe notches of said journal boxes whereby the oil from the oil boxes isapplied to the sides of the axle.l a trolley Wheel fxedly mounted onsaid shaft, and means arranged 0n the fork to protect the vianges ofsaid wheel during -replacement on the Wire. 2. A trolley harp having onits upper ends, `eil boxes, said bgxes hav-ing in ,one side ies-real be;wei-vire en bur.v said bexesliavng,

Vso

said notches intersecting the bores of the journal boxes, bearingV theapertures whereby an oil tight connectures of said oil boxes,

` protecting casing arranged i arranged on receiving aperture, means tonormally close said aperture, journal boxes adapted to be engaged withsaid journal box apertures, retaining flanges, formed on the outer endsof said boxes whereby the latter are held in place, means whereby theoil in said oil boxes is applied to the journal boxes, a trolley wheelshaft having its ends revelubly mounted in said boxes, a trolley wheelfixedly mounted on said shaft, and a wheel on said fork and adapted toinclose the lower portion of the wheel whereby the flanges thereof areprotected from breakage when being replaced after jumping the wire.

3. Atrolley harp having on its upper ends, oil boxes, said boxes havingin their inner sides, journal box receiving apertures and in one edgefilling and wick receivin apertures, doors slidably engaged wit saidapertures, said doors having recessed lower edges adapted to engage thelower edges of tion is formed between these parts, means to fasten thedoors in closed position, journal boxes arranged in the journal boxaperbearing sleeves arranged in said boxes, a trolley wheel shaft havingits ends engaged with said bearing sleeves, a trolley wheel iixedlymounted on said shaft, and a wheel protecting casing the harp around theinner portion of the wheel whereby the wheel is protected in replacingthe trolley on the wire.

4. A trolley harp comprising a shank, a forked body, oil boxes formed onthe upper ends of said body, said boxes having formed in their innersides, journal box receiving apertures, and in one of theirl outer edgesfilling openings, sliding doors adapted to form iuid tight closures forsaid filling openings, means to secure said doors in closed position,journal boxes adapted to be engaged with the journal box openings in theinner sides of the oil box, ysaid journal i boxes having circular boresand having 1n one side notches intersecting said bores, retainingfianges formed on one end of said 'Copies of this patent may be obtainedfor ve cents each, by addressing the boxes, a trolley wheel shaft havingits ends revolubly and slidably engaged with said journal boxes, wickssecured to said journal boxes and adapted to engage the notches thereinwhereby the lubricant from the oil box is conveyed to the sides of thetrolley wheel shaft, a trolley wheel fixedly mounted on said shaft, andmeans whereby the wheel is yieldingly held in position midway bet-weenthe sides of the ends of the trolley ork.

5. A trolley harp omprising a shank having forked upper ends, oil boxesformed on the forked upper ends of the harp, said boxes having on theirinner sides journal box apertures, journal boxes adapted to be engagedwith said openings and projecting into said oil boxes, said journalboxes having formed in one side notches, said notches intersecting thebore of the boxes, a trolley wheel shaft having its ends revolublymounted in said boxes, wicks secured in the notches of said journalboxes and adapted to engage and convey the lubricant from the oil boxesto the ends of said trolley wheel shaft whereby the latter arelubricated, and a trolley wheel fxedly secured to said shaft.

6. A trolley harp having an oil box on the upper end of each fork,having a journal box receiving opening in its inner sides, and a fillingopening in its front face, a journal box slidable through the receivingopening from the front of the oil box, the edge of the journal box beinggrooved to embrace the edge walls of the receiving opening, groovesbeing also formed in one wall of the filling opening and in the innerface of the outer edge of the inserted journal box, and a doorl slidablein the two last named grooves closing the filling opening.

ln testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

PETER FABROWIGZ. Witnesses:

FREDERICK MARwIox, STANLEY SYMANSKL Commissioner of Patents,

